New Delhi and Spain’s capital of Madrid will soon become “sister" cities. This follows the plan submitted by Spanish government for cooperation in developing smart and sustainable cities in India through technology infusion and best practices in areas like pollution control, water conservation and recycling and waste management. Spanish Ambassador to India, Gustavo de Aristegui, met Deputy Chief Minister Manish Sisodia and discussed the issue of sisterhood agreement between the two cities. The Delhi Government has already given its nod for the move. The ambassador explained the concept of “green police” to Sisodia for checking polluting vehicles in Spain. Sisodia told the envoy that the availability of water is the most important issue for Delhi, for which Spanish assistance would be welcome. A Spanish delegation led by Minister of Foreign Affairs and Cooperation Jose Manuel Garcia-Margallo has already submitted a draft MoU for developing smart cities to India’s Urban Development Minister M. Venkaiah Naidu. Spain offered to assist Delhi in becoming the first global and smart city of India under the proposed framework of the MoU. The Spanish Minister claimed that his country was among the world leaders in building railway and metro networks, roads and ports, besides its excellence in shipping, recycling of waste, water management and harnessing renewable energy sources.